core: fixed launchAction:

- getClient now raise a NotFound error if client is not available
    - errors ConnectedProfileError, NotConnectedProfileError anf ProfileKeyUnknownError renamed for consistency (all profile error must prefixed by Profile)
    - launchAction fixed, the case where client is not available is handled
    - kept actions are actuall1y removed on launchAction

src/core/exceptions.py

@@ -33,16 +33,16 @@ class ProfileNotSetError(Exception):
     pass
 
 
-class ConnectedProfileError(Exception):
+class ProfileConnected(Exception):
     """This error is raised when trying to delete a connected profile."""
     pass
 
 
-class NotConnectedProfileError(Exception):
+class ProfileNotConnected(Exception):
     pass
 
 
-class ProfileKeyUnknownError(Exception):
+class ProfileKeyUnknown(Exception):
     pass